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463ec1caa3
This change adds a basic support for Embest/Timll DevKit3250 board, NOR and UART are the only supported peripherals for a moment. The board doesn't require low-level init, because the initial SDRAM and GPIO configuration is performed during kickstart bootloader execution. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Acked-by: Marek Vasut <marek.vasut@gmail.com>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Embest/Timll DevKit3250 board support
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*
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* Copyright (C) 2011 Vladimir Zapolskiy <vz@mleia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <common.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/emc.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct emc_regs *emc = (struct emc_regs *)EMC_BASE;
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int board_early_init_f(void)
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{
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lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
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return 0;
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}
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int board_init(void)
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{
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/* adress of boot parameters */
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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#ifdef CONFIG_SYS_FLASH_CFI
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/* Use 16-bit memory interface for NOR Flash */
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emc->stat[0].config = EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT;
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/* Change the NOR timings to optimum value to get maximum bandwidth */
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emc->stat[0].waitwen = EMC_STAT_WAITWEN(1);
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emc->stat[0].waitoen = EMC_STAT_WAITOEN(1);
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emc->stat[0].waitrd = EMC_STAT_WAITRD(12);
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emc->stat[0].waitpage = EMC_STAT_WAITPAGE(12);
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emc->stat[0].waitwr = EMC_STAT_WAITWR(5);
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emc->stat[0].waitturn = EMC_STAT_WAITTURN(2);
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#endif
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return 0;
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
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CONFIG_SYS_SDRAM_SIZE);
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return 0;
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}
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